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Details

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General

Meta data ID	{2C451DD8-C354-4D5C-BBCB-EA9424D18337}
Last modified	2024-04-23T08:54:05

Dataset creators

Contact person

First name	Maria
Last name	Kämäri
Email	maria.kamari@syke.fi
Organisation	Finnish Environment Institute

Dataset creators

First name	Petri
Last name	Ekholm
Organisation	Finnish Environment Institute

Dataset creators

First name	Markku
Last name	Ollikainen
Organisation	University of Helsinki

Dataset creators

First name	Maria
Last name	Kämäri
Organisation	Finnish Environment Institute

Project

Project name	SAVE and SAVE2 - Improving the water quality of the Archipelago Sea by applying gypsum to fields
Project funder	Ministry of the Environment

Description

Basic information

Dataset title	River variables - water quality and quantity of the Savijoki River during the years 2016-2022
Theme	Inland Water Resources
Description	High frequency, hourly monitoring of the Savijoki River turbidity and water temperature in three monitoring site along the river was conducted using online YSI EXO2 sondes. The sensors were calibrated in a laboratory twice a year. All sensors were cleaned automatically by a brush before every measurement. The EXO sondes monitored both the position and the power consumption of the brush enabling the detection of malfunctions of the cleaning system. Manual inspection of the data flow and quality was check in a daily routine. EXO sondes were used from 2016-02-19 to 2022-05-09. There were no online EXO sondes in the Savijoki in the summers of 2019 and 2020. The three turbidity monitoring sites are denoted in the data columns of the water_quality_EXO.cvs file with letters c,u,l. The letters refer to the following monitoring stations in the Savijoki River with identification, name and location (Latitude, Longitude): c = control site, Savijoki mittapato u = upper site, Savijoki Yliskulma l = lower site, Savijoki Bränikkälä Parmaharju, 60.526726, 22.537906 Water level (W, cm) was measured at the Savijoki mittapato site only. Hourly water level by a calibrated V-notch weir is transformed into discharge by a rating curve. Discharge has been converted into runoff (R, l/s/km2) by dividing the discharge by the contributing catchment area. Size of the contributing catchment at the Savijoki mittapato site is 15 km2. The hydrological station was managed by the Southwest Finland Centre for Economic Growth, Transport and the Environment the data was checked at the Finnish Environment Institute. Content of the water_quality_EXO.csv datafile: Datetime: date and time (local time) T_c, T_u, T_l: Preliminary turbidity (FNU) data where clearly deviating values have been removed. Sites: c,u,l Turb_c, Turb_u, Turb_l: Turbidity (FNU) part of the data lacking in the column T_c has been interpolated. Sites: c,u,l FLAG_c, FLAG_u, FLAG_l :Potential outliers in turbidity data marked with x based on visual inspection and comparison of timeseries monitored in the river. Sites: c,u,l t_c, t_u, t_l: Preliminary water temperature (°C) data where clearly deviating values have been removed. Sites: c,u,l Temp_c, Temp_u, Temp_l: Water temperature (°C). Contains interpolated data. Sites: c,u,l Content of the hydrological_data.xlsx Datetime: Date and time (local time) W: water level (cm) R:runoff (l/s/km2) WST: water temperature (°C)
Language (dataset)	English
Keyword	river
Keyword	water quality
Keyword	runoff
Keyword	turbidity
Keyword	stream
Keyword	discharge
Keyword	water level
Keyword	water temperature

Data processing steps

Data processing steps	quality control
Description	Water temperature and turbidity were recorded at an hourly interval by using YSI EXO2 sondes.+ Potential outliers have been removed + Visual data analysis. Grab sample turbidity values have been compared with sensor data
Additional information (URL)	https://doi.org/10.1016/j.jenvman.2024.120706

Material time period

Start date	2016-01-01
End date	2022-12-31

Area

West Bounding Longitude	22.4
East Bounding Longitude	22.9
South Bounding Latitude	60.0
North Bounding Latitude	60.6

Distribution

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Action (default: None)	publishDoi
Reserved DOI	10.48488/cpj7-wn62
Published DOI	10.48488/cpj7-wn62

Contact person

First name	Maria
Last name	Kämäri
Email	maria.kamari@syke.fi
Organisation	Finnish Environment Institute

Resources

Web-address (URL)

http://tiw01.env.fi/tutkimusdata/2C451DD8-C354-4D5C-BBCB-EA9424D18337/Savijoki_River.zip

Resources

Web-address (URL)

http://tiw01.env.fi/tutkimusdata/2C451DD8-C354-4D5C-BBCB-EA9424D18337/Savijoki_River.zip

Resources

Web-address (URL)

http://tiw01.env.fi/tutkimusdata/2C451DD8-C354-4D5C-BBCB-EA9424D18337/Savijoki_River.zip

Resources

Web-address (URL)

http://tiw01.env.fi/tutkimusdata/2C451DD8-C354-4D5C-BBCB-EA9424D18337/Savijoki_River.zip

Resources

Web-address (URL)

http://tiw01.env.fi/tutkimusdata/2C451DD8-C354-4D5C-BBCB-EA9424D18337/Savijoki_River.zip

Reference publications

Reference

Petri Ekholm, Markku Ollikainen, Eliisa Punttila, Venla Ala-Harja, Juha Riihimäki, Mikko Kiirikki, Antti Taskinen, Khaleda Begum, 2024. Gypsum amendment of agricultural fields to decrease phosphorus losses – Evidence on a catchment scale, Journal of Environmental Management, Vol 357, 2024. https://doi.org/10.1016/j.jenvman.2024.120706

The license for open SYKE's open datasets is Creative Commons Attribution 4.0 International.

The data described here can be freely used to all purposes, provided that the source of the data is mentioned.

The citation for the dataset as given above.

Further information on the license:
https://creativecommons.org/licenses/by/4.0/legalcode (English)
https://creativecommons.org/licenses/by/4.0/legalcode.fi (Finnish)

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